0 OTHER OPENING BIDS COMPETITIVE AUCTIONS

Min CONVENTIONAL SPECIAL Agreements after opening of one of a suit and overcall by opponents HCP Notes length MEANING RESPONSES Level to which negative doubles apply 4 F, 4+ . 13+, 5+  17+ or 1. 12+ 0 1 usually negative 2 1m-(1y)-3x wk, 1. (2y) 2NT->3 txfers; & [8] + Special meaning of bids bal 12-14 / 18-20 / 23 1y/2y (2y/2M) 2NT/3.: transfers to ./; FJ + + 1 13 4 F, unbal, unlimited 1/1 0 pts 3 Exceptions / other agreements 1m (1) X denies 4 spades, txfers after 1. (1) + + + 1 11 5 F, 13+ (11+ with 4 ) 1 0-12, 0-4 , 1NT 0 , 5  4 Agreements after opponents double for takeout 1 9-16 5 1NT 7-14, 2x GF, 3x inv 5 Redouble 9+ New suit F/txf [12] Jump in new suit p-e/fit [13] 3 bids weak 6 4. (4) slam try Jump raise p-e 2NT sound raise Other 2./R (X) 2NT: raise/. 4 bids weak 7 Other agreements concerning doubles and redoubles *(Please tick box if you have any special agreements involving different values in particular positions (e.g. light openings in third seat) and include further details under Supplementary Details). Support doubles & redoubles show 3-card support or power after 1m-1M (suit bid DEFENSIVE METHODS AFTER OPPONENTS OPEN to 2M); responsive to 4. Lebensohl applies over many 2 level doubles. OPPONENTS OPEN A CONVENTIONAL SPECIAL OTHER CONVENTIONS Notes NATURAL ONE OF A SUIT MEANING RESPONSES 2 GF rebid after 1.-1M shows 4-card support or balanced with 3-card support Simple overcall 8-18, 10-18 at 2 level some txfers, 2NT: raise of M 6 or 6+ .; asks for M length (Odwrotka) Jump overcall Weak (int. protective) 2NT ask Opposite overcall, rdbl at 1 level shows values and 2-card support Cue bid Michaels; jump for stop 3m p/c, 2NT ask: 3m/M=min/max 7 Good-bad 2NT over some competitive 2/2/2 1NT Direct: 15-18 2 way checkback after 1.-1M-1NT & 2N transfer Protective 11-14 as over 1NT opening + + + + : Gazzilli-style: 1-1M-1NT (18 then 2. 6 , 2/N 11 ), 1-1NT-2. (./18 , then 2NT Direct: Unusual 2 & 3. 0-5), 1-1-1NT (/17+), 1-1NT-2. (./17+) Protective 19-21, & 1.(1M) P P 2NT as over 2NT opening Fourth suit GF OPPONENTS OPEN DEFENSIVE SPECIAL Notes WITH METHODS RESPONSES SUPPLEMENTARY DETAILS Strong 1. (+1 resp) X majors, 1NT minors (1) After 2NT-3.: 3 shows a 4cd M then 3M shows OM, 4./ both; 3 no 4cM Short 1./1 As usual but (1.) 2., (1m) 3m nat; (1.) 2: & then 3 txfer, 3N shows 5&4; 3 shows 5; 3NT=5 then 4 transfer. Break Weak/strong 1N, 1. 2.: &, 2: /, 2M: 5M & 4-cd m, X by passed hand 2NT-3R txf with fit to long suit + 9 (1N), (1m) P (1N) or vs 14 NT in 1,2,4: 5-cd m & 4-cd M (2) Responses to 1.: 1 any 0-6 or some 7+ with no 4-cd M (then 1M 3+ if 12-14 Weak 2 X takeout, leaping Michaels Lebensohl 8, 10 bal; 2 20+ with 5. & 4 or 20-22 with 5 or 25+ bal; 2 /strong .); Weak 3 and 4 bids X takeout 11 2. 13+, 5+ no 5cM then 2M swap; 2 13+, 5+. no 5cM then 2M swap; 2/2 Multi 2 X: 13-15 bal or v strong, 4m: corresp M & a minor 4-7, 6-cd suit; 1.-1-1-1NT-2 17-20 with 5+; 1.-1M-2.-{2->3.} txfer SLAM CONVENTIONS (3) Responses to 1: 1/1 0+, 4+ /; 1NT 0-8 no M; 2. GF ./; + Name Meaning of Responses Action over interference 2 6-9, 6-cd M; 2 4-8, 5 & 4 ; 2 6-10  raise; 2NT/3. nat inv; 3 p-e; 1-1M-2-{2OM->3} txfer; 3 raise with any stiff; 3/3NT/4. void Kickback (cheapest bid 14/30/2wo/2w; T denies DOPI/ROPI above 4 of agreed suit) Q; specific K (5N subst) (4) Responses to 1: 1 0-12 with 0-4 , 1NT 0+ with 5+ , 2. GF ./bal, 2 GF, 2 inv+  raise, 2NT 6-10  raise, 3./3 nat inv (fit-showing if passed), Italian & substitute cues then further ask 3 pre-emptive, 3 raise with any singleton, 3NT/4m void /m Non-serious 3M+1 Exclusion RKB 0/1wo/1w/2wo/2w (5) Responses to 1: 1NT 7-14, 2. GF ./bal (9+ raise if passed), 2/2 GF, 2NT inv+ Jacoby (minors if passed), 3./3/3 inv (fit-showing if passed), 3 Epsilon asks for control in suit None/3rd/2nd/1st/AQ

mixed raise, 3N raise with any singleton, 4m/ raise with void OPENING LEADS Name Richard Granville EBU No. 85715 For all the card combinations shown, clearly mark the card Hatch over or shade this box if using normally led if different from the underlined card. non-standard leads. Partner Graham Sadie EBU No. 89654

A K A K x K Q 10 K Q x K J 10 K 10 9 Q J 10 GENERAL DESCRIPTION OF BIDDING METHODS

Q J x J 10 x 10 x x 10 9 x 9 8 7 x 10 x x x H x x v. suit v. suit contracts H x x x H x x x x H x x x x x x x x x x x x x x MOSSO: 1./1/1 UNLIMITED – 1 9-16 – 2./2/2 9-12 – 2 WEAK

A K x (x) A J 10 x K Q 10 K Q x K J 10 K 10 9 Q J 10 1NT OPENINGS AND RESPONSES

Q J x J 10 x 10 x x 10 9 x 9 8 7 x 10 x x x H x x v. NT v. NT

contracts Tick if artificial and provide details below H x x x H x x x x H x x x x x x x x x x x x x x Strength 15-17 Shape constraints Tick if may have singleton Other agreements in leading, e.g. high level contracts, partnership suits:- 3rd and 5th in partner’s suit (1st from 3 small if length known) Responses 2. Stayman (promissory); then 2-3M shows 4M & 5OM A, Q ask for reverse attitude, K asks for unblock or reverse count 2 Hearts; then 2nd txfer by responder 2 Spades; ditto CARDING METHODS 2 Clubs or raise to 2NT (no 4M) 2NT Diamonds (no 4M) Primary method v suit contracts Primary method v NT contracts 3. 5-card Stayman (perhaps no 3M), 3 1=3=4=5 or 1=3=5=4, Others On Partner’s lead Reverse count Reverse count / attitude 3 3=1=4=5 or 3=1=5=4, 3 GF with 5-5 in minors, 4. Gerber, 4/4 Texas On Declarer’s lead Reverse count Reverse count Action after opponent’s double Rdbl of pen X = a minor, system on When discarding 1st: rev attitude then rev count 1st: rev attitude then rev count Action after other interference 2NT -> 3 transfers (Rubensohl) Other carding agreements, including secondary methods (state when applicable) and exceptions to above Reverse Smith Peters (i.e. for active switch); suit preference in trumps; rev TWO-LEVEL OPENINGS AND RESPONSES attitude in Bath coup situations or at NT when dummy has singleton/void Meaning Responses Notes SUPPLEMENTARY DETAILS (continued) 2. 9-12 (7-12 3rd), 5+, not 5-3-3-2 2 relay, 2NT shows  (6) After our 1-level overcall: 2-level transfers to bypassed suits, other 2-level 2 9-12 (“), 5+, not 5-3-3-2 2 relay, 2NT shows  bids constructive; after 2-level overcall new suit forcing; fit jumps & non-jumps 2 9-12 (“), 5+, not 4 or 5-3-3-2 2 relay, 2NT shows  (7) Double jump cue: Acol 2 in a major 2 Weak, 5-9 2NT for feature, 4. Epsilon (8) Modified Gold over (2M) 2NT, 1. (2M) P P 2NT and 1. P 1 (2M) 2NT: + Muppet Stayman, txfs (break:fit), 3. txfer (/Stayman), 3 OM, 3 .&, 3 6 ., 4m slam try in OM, 2NT 21-22 1 4M/4NT flat slam try; XX for 3. 3 .&, 4y 2-below slam try (9) After penalty X of (1NT), first X of natural suit bid is takeout, other Xs penalty; OTHER ASPECTS OF SYSTEM WHICH OPPONENTS SHOULD NOTE after non-penalty X, 2. is pass/correct, 2 for major; after 2., 2 asks for longer (Please include details of any agreements involving bidding on significantly less than traditional values). major else p-e; multi responses after 2 1., 1 and 1 openings are unlimited and forcing for 1 round (10) Leaping Michaels: over 2M, 4./ is 5 of suit & 5 OM but om & respective M 1. opening 3-way: (a) 13+ with . over 2m; cue of minor shows & but cue of major asks for stop (b) 17+ with 5+  (11) After (3y) 3NT: 4. range enq, 4 Flint, 4M/5m nat slam try, cues 2-suited (c) balanced 12-14 (5-3-3-2 possible), 18-20 or 23+ (12) Over 1 (X), 1NT->2(suit)-1 are transfers 1 opening 9-16 (13) 1./1/1 (X) 2/2 pre-emptive, 3./3 fit-showing

MOSSO version 1.07: CC last updated 17 Nov 2020 Both players of a partnership must have identically completed convention cards. Cards must be exchanged with opponents for each round. EBU 20B